1.

A : 3. C_0 + 7.C_1 + 11. C_2 + ….+(4n + 3). C_n = (2n +3) 2^n. R : a. C_0 + (a+d). C_1 + (a+2d). C_2 + …..+ (a+nd). C_n - (2a+nd). 2^(n-1).

Answer»

Both A and R are TRUE and R is the correct EXPLANATION of A
Both A and R true but R is not correct explanation of A
A is true but R is false
A is false but R is true

Answer :A


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